The Viasat GAT-5518 is a resilient Ka-band terminal with an 18-inch parabolic antenna, designed for in-flight broadband connectivity services on airborne platforms.
GAT-5518 terminal
The Viasat GAT-5518 is a resilient Ka-band terminal with an 18-inch parabolic antenna, designed for in-flight broadband connectivity services on airborne platforms.
Description
Viasat’s resilient Ka-band GAT-5518 terminal features an 18 in. (45.7 cm) parabolic antenna capable of operating on full ITU Ka-band spectrum with all polarizations. This mission-ready terminal is part of Viasat’s family of next-generation, full-ITU Ka-band terminals, enabling in-flight, broadband connectivity services for airborne operations globally. It is designed to future-proof aircraft with interoperability across all Viasat Ka-band satellites, including the planned ViaSat-3 global constellation. The system comprises three Line Replaceable Units (LRUs): an 18 in. (45.7 cm) antenna with an integrated RF and ACU, a next-generation modem, and an antenna power supply unit. The antenna can be tail or fuselage mounted and operates over the highest capacity Ka-band satellites. It integrates into existing aircraft cabin networks and is a low SWaP (Size, Weight, and Power) solution, ideal for fixed-wing and UAS aircraft, allowing for sending and receiving large amounts of data with a small footprint. The GAT-5518, partnered with Viasat's global Best Available Network (BAN), provides mission-critical connectivity for global and regional aircraft, enabling real-time mission-critical data. This includes enroute government C3 and VIP transport communications for data, VoIP, VTC, internet access, virtual collaboration, and IPTV, as well as real-time intelligence, surveillance, and reconnaissance (ISR) with HD full motion video and multi-sensor/multi-intelligence operations for instant situational awareness and decision making.
Specifications
| Antenna class | Tail or fuselage mount, parabolic reflector Ka-band TX/RX airborne antenna |
|---|---|
| Antenna aperture | Parabolic reflector, circular polarization, electronically switchable, all combinations of R, L, co-pol, or cross-pol |
| Antenna frequency | Full ITU Ka, commercial and military |
| Antenna swept volume (DxH) | Ø19.6 x 19.6 in.; Ø49.8 x 49.8 cm. |
| Antenna weight | 35.0 lb.; 15.9 kg |
| Antenna power supply power source | 115 VAC, 360 Hz – 800 Hz single phase, or 28 VDC |
| Antenna power supply power consumption | 420 W |
| Antenna power supply dimensions (LxWxH) | 11 x 8 x 3.3 in.; 28 x 20.8 x 8.3 cm. |
| Antenna power supply weight | 7.9 lb.; 3.6 kg |
| Modem form factor | ARINC 600 4 MCU |
| Modem dimensions (LxWxH) | 14.6 x 4.9 x 7.6 in.; 37 x 12.5 x 19.4 cm. |
| Modem weight | 17.0 lb.; 7.7 kg |